摘要
通过分散共聚制备了聚N-异丙基丙烯酰胺接枝聚丙烯腈/聚苯乙烯(PNIPAAm-g-PAN/PSt)聚合物微球,以氯铂酸(H2PtCl6)为金属源,乙醇为还原剂,将与酰胺基团配位的铂离子(Pt4+)还原成纳米铂(Pt)颗粒,负载在表面具有特殊形态的聚合物微球表面,制得了分散稳定的负载型纳米Pt颗粒,可用于催化苯胺的聚合等,通过改变反应温度可控制苯胺的聚合速率。
The PNIPAAm grafted poly（acry were prepared through the dispersion copo onitrile/styrene） （PNIPAAm-g-PAN/PSt） microspheres ymerization. Using H2 PtCl6 as metal source, platinum nanoparticles can be easily prepared via the reduction of the corresponding platinum ions Pt4＋ by etha- nol when the coordination interaction took place between the Pt4＋ ions and amide of PNIPAAm, the ultrafine dispersed platinum nanoparticles were loaded on the surfaces of these PNIPAAm-g-PAN/PSt mierospheres with unusual morphology. This material can be used in catalytic reactions such as aniline polymerization and so on. The polymerization rate of aniline can be controlled by changing reaction temperature.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2008年第10期272-274,277,共4页
Journal of Materials Engineering
基金
国家自然科学基金资助项目(20671043)
关键词
聚合物微球
纳米Pt颗粒
催化性能
苯胺聚合
polymer microsphere
platinum nanoparticle
catalytic property
aniline polymerization
